Adjustable cushioning means for lever-actuated mechanism.



R. R. KUSS.

ADJUSTABLE CUSHIONING MEANS FOR LEVER ACTUATED MECHANISM. APPLICATION FILED JUNE 7. 19l6.

1 21%,825 Patented Jan. 30, 1917.

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A TTOH/VEYS APPLICATION FILED JUNE 7. l9l6.

Patented Jan. 30, 1917.

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RUDOLPH B. KUSS, OF BOISE, IDAHO.

ADJUfiTABLE CUSHIONI'NG MEANS EGB LEVEB-ACTUATED MECHANISM.

Application filed June 7, 193.6.

To all whom it may concern:

Be it known that I, RUDOLPH R. KUss, a citizen of the United States, and a resident of Boise, in the county of Ada and State of Idaho, have invented new and useful Improvements in Adjustable Cushioning Means for Lever-rictuated Mechanism, of which the following is a specification.

My invention is an improvement in adjustable cushioning means for lever actuated mechanism, and is shown in connection with a stamp mill composed of two stamp units, wherein the stamps of the unit are connected to the ends of a lever which is a walking beam which is adapted to be oscillated by any suitable or desired means to reciprocate the stamps, and wherein the stamps are con nected to the beam in such manner that they may yield with respect to the beam to prevent injury to the parts during the operation of the mill.

in the drawings: Figure 1 is a side elevation of the improved mill with parts in section. Figs. 2 and 3 are sections on the line 22 and 3-3 of Fig. 1, looking in the direction of the arrows adjacent to the line, and Fig. d is a perspective view of the crank shaft and wrist pin with parts detached.

In the present embodiment of the invention, a supporting frame is provided consisting of a base 1, having near each end a recess 2 whose bottom is frusto-conical or tapered, as shown at 3, and a mortar is supported by each recess. The frame also com prises a superstructure at having a cross bar 5, on which the stamps to be later described, are slidable. A shaft or standard 6 is arranged between the recesses 2 at the center of the base, the said shaft or standard being held in a step bearing 7, and a bearing 8 on the superstructure.

A shoe 9 is arranged in each depression 2 on the bottom 8 thereof, and with each shoe a stamp 10 cooperates, each stamp being on the end of a stem 11, which is mounted to slide in a bearing 12 on the cross bar 5 before mentioned. The upper end of each stem 11 is threaded as shown at 13. A sleeve 14: is threaded onto the upper end of each stem 11, and each sleeve is provided at each end with an annular external rib 1.5. A bushing 16 is arranged on each sleeve be tween the flanges 15, each bushing fitting the sleeve internally, and being polygonal in cross section externally, that is, square in the present instance.

Specification of Letters Patent.

Patented Jan. 3'0, 191?.

Serial No. 102,303.

A coil spring 17 encircles the sleeve at each end of the bushing, each spring being arranged between the rib 15 and the adjacent end of the sleeve, and these springs act normally to hold the bushing at the center.-

- plates 20, which are connected at their ends;

to the bushings 16, the said plates being lapped upon opposite sides of the bushings and being connected outside of the bushings by a bolt and nut 21. Each bolt 21 is passed through the extended ends of the plates 20 and is engaged by the nut to hold the plates in close contact with the side walls of the bushing. Each bushing is connected to the walking beam by means of oppositely arranged bolts 22, the said bclts having conical heads as shown, which are counter-sunk in the bushings. The bolts are passed from within outward, and the counter-sinking insures that the inner ends of the bolts will be flush with the inner surface of the bore of the bushing. Each bolt 22 is engaged by a nut 23 outside the adjacent plate, and it will be obvious that by removing the nuts, the bolts may be disconnected from the plates of the walking beam.

The walking beam is pivoted to a bolt 24; which is held at the top of the shaft or standard by a sectional bearing 25, the bolt being journaled in the bearing, and the sections of the bearing are held together by bolts and nuts 26. The walking beam may be connected with a suitable operating mechanism at any point in its length, as for instance, at its ends, but preferably a crank shaft 27 is journaled in the sectional bearing 28 on the superstructure 4 between one of the stamps and the shaft or standard 6. This crank shaft 27 is connected to the walking beam by means of a link 29, the link being connected at its upper end to a bolt 30 which is journaled in a sectional bearing 31 between the plates 20 of the walking beam. At its lower end the link 29 is connected with a bearing plug 30 and the bearing plug is connected to the crank shaft by means of a wrist pin 31 which is passed through registering openings in an angular arm 32 of the crank shaft and in the plug 30 and the pin is engaged by a nut 33 to hold it in place. The arm 32 of the crank shaft is provided with three openings 34-, arranged in a line radial to the shaft, and the wrist pin 31 may engage with any opening, thus providing for a short, a medium and a long stroke. The mortar is encircled by a substantially cylindrical casing 35 of perforate material, but having imperforate end portions 36 and encircling hoops 37. These casings are open at one side and abut against a plane facing plate 38, supported by the base and the superstructuro, and these plates hare feeding openings 39, having hoppers 4:0 delivering to the openings.

The crank shaft 27 is shown merely as a form of motor, and in 'n'actice the walking beam may be oscillated by any preferred form of motor. The stamps 10 cooperate with the shoes 9 of the mortars, and each stem 11 is provided with a collar which is adjustable thereon and is held in adjusted position by a set screw e2. These collars are for permitting the attachment of a feeder apparatus of any preferred form. Preferably the bushings 16 have openings for the bolts 22 at right angles to the position shown, in order that when they become worn they may be turned. By loosening the bolts 19, the sleeve 14 may be adjusted on the stem, and it will be evident that Whenever a stamp 10 strikes a shoe, the lowermost spring 17 will yield, to prevent injury to the Walking beam or to the mortar. lVhilethe stamps stem, the sleeve having stops at its ends, a

bushing slidable on the sleeve between the stops, ,and springs at the ends of the bushing and between the same and the stops.

2. In con'ibination with. a. reciprocating stem and the means for reciprocating the same, of a yielding connection between the stem and the said means and comprising a sleeve adjustable on the stem and having means for securing the same in adjusted position, said sleeve having at each end a stop and a bushin between the sto s and. a

spring between each end of the bushing and the ad acent stop.

RUDOLPH R. KUSS.

Witnesses:

IIARRY L. AVERY, HULDA E. AVERY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

